
YINYOO Easy KZ ZST
Score: 74/100
JBL Endurance Run 2
Score: 78/100Rankings

The JBL Endurance Run 2 Wired earbuds deliver punchy bass and a secure, sweat-proof fit for active users. They are lightweight and feature an in-line mic, but lack wireless freedom and active noise cancellation.

The YINYOO Easy KZ ZST is a budget-friendly hybrid IEM that combines a balanced armature and a dynamic driver for lively, detailed sound. Its ergonomic memory-wire design, multiple silicone tip sizes, and detachable cable provide comfort and versatility, while the lack of wireless features and occasional bass distortion keep it in the entry-level segment.
| Attribute | ![]() | ![]() |
|---|---|---|
10 mmbest | 8.2 mm | |
20 Hzbest | 20 Hzbest | |
20,000 Hzbest | 20,000 Hzbest | |
106 dBbest | 102 dB | |
18 Ωbest | — | |
| ↓ lower better | 20 gbest | 20 gbest |
12 monthsbest | 12 monthsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Audio(3) | ||
Driver Size (mm) | 10 mm | 8.2 mm |
Sensitivity (dB) | 106 dB | 102 dB |
Microphone | false | true |
Build & Design(1) | ||
IP Rating | unknown | IPX5 |
Battery & Power(1) | ||
Charging Port Type | 3.5 mm | 3.5 mm TRRS |


Products in the top-left offer the best value (high score, low price).

Professional reviewers praise the KZ ZST for its rich, energetic audio performance, noting the hybrid driver setup provides clear separation and a lively soundstage, while highlighting its ergonomic design and exceptional value.
Everyday users consistently commend the earphones for impressive sound quality, comfortable fit, and the convenience of a detachable cable, but mention occasional bass distortion at high volume, stiffness of the stock cable, and confusion over mic-less versions.

Professional reviewers position the Endurance Run 2 as a durable, budget-friendly workout earphone, emphasizing its superior sweat resistance, secure fit mechanisms and JBL's bass-heavy tuning while noting the absence of wireless features and ANC.
Everyday users consistently praise the headphones for staying in place, delivering punchy bass and having a convenient magnetic storage design, while recurring complaints focus on the wired connection, occasional device compatibility problems and the missing protective case.
“The sound quality is amazing, and the noise cancellation is great.”

“Incredibly comfortable for long sessions-perfect for work and travel.”

“The removable cable is a game-changer; I upgraded to a silver cable and the sound improved noticeably.”


